Mountain Billy Goat-15 Helium AR-15 Rifle .22 LR 16in Threaded Barrel
User Ratings
No ratings yet
Be the first to review this product
Mountain Billy Goat-15 Helium is the lightest semi-automatic AR-15 style rifle in .22 LR. It features a 16" threaded barrel, a polymer M-LOK handguard, and a 7-position adjustable stock. Included are one single-shot magazine and one 10-round magazine. Blowback action. Finish: Black. Weight: 2.875 lb. Caliber: .22 LR. Thread pattern: 1/2x28 TPI.
Specifications
- Manufacturer:
- Mountain Billy Gun
- Category:
- lower-receiver
- Caliber:
- .22 LR
- Platforms:
- AR-15
- Interfaces:
- Muzzle thread: 1/2-28MIL-STD-1913
- Weight:
- 46 oz (2.88 lbs)
- Length:
- 16.0"
- UPC:
- 850022225253
- MPN:
- 471662
- Required Component:
- Yes
- Complete Firearm:
- Yes
Parts Cabinet
Track parts you own or plan to buy.
Where to Buy
Sponsored
MantisX
The smart way to train your AR build
Built your rifle — now train it. BlackBeardX installs in minutes and turns your AR into a full dry fire system with smart feedback on every pull.
Shop BlackBeardXPrice History
Current
$439.00
Lowest
$439.00
Highest
$463.99
Price Alert
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertWhat's Included in this Bundle
Similar Products
Griffin Armament MK2 Ambi Stripped AR-15 Lower Receiver - Ambidextrous Controls - Flared Magwell - Anodized Black - MK2AL
Griffin Armament
$189.99
Aero Precision Inc M4E1 223/5.56mm AR-15 Stripped Lower Receiver
Aero Precision
$108.50
Geissele Automatics Super Duty Stripped AR-15 Lower Receiver - Desert Dirt
Geissele Automatics
$200.00
AERO PRECISION AR-15 Gen 2 Stripped Lower Receiver - Matte Black
Aero Precision
$89.99
LMT MARS-L Ambidextrous AR-15 Stripped Lower Receiver
LMT
$342.00
PSA AR-15 "Stealth" Stripped Lower Receiver
Palmetto State Armory
$69.99
PSA AR-15 Lower Safe/Fire - 1728
Palmetto State Armory
$64.99
PSA AR-15 M4 Carbine Stripped Lower Receiver
Palmetto State Armory
$79.99
Builds Using This Part
No builds yet — be the first to use this part.
Related Guides
Guide
AR-10 Receiver Patterns: DPMS vs. Armalite Compatibility
The AR-10 has two incompatible receiver patterns — DPMS and Armalite — that look similar but do not share parts. This guide explains the differences and how to buy correctly.
6 min read
Guide
The AR-10 Platform: What It Is and How It Differs from the AR-15
A practical overview of the AR-10 — its origins, how it differs from the AR-15, available calibers, and when it makes more sense than a standard AR-15 build.
6 min read
Guide
AR-15 Components: A Complete Reference Guide
A comprehensive overview of every major component in an AR-15 build—including what's inside bolt carrier groups and parts kits—organized by assembly for new builders.
12 min read